Show an example on top of CSV.read

[rikhuijzer]

I was looking through the documentation of this package and noticed that there is no example for CSV.read. Instead it just lists all the arguments. I suggest to add a small example which answers:

1. "How do I open a CSV file as a DataFrame?" since the majority of readers will be looking for this
2. "How do I pass one of these listed arguments to the CSV.read function?"

Maybe we can move the CSV.read also to the top of the page at https://csv.juliadata.org/stable/reading.html? That would make the information more consistent with the https://csv.juliadata.org/stable/writing.html. The writing page is excellent by the way. Very clear.

[nickrobinson251]

Seems a good addition to me!

[quinnj]

Thanks @rikhuijzer!